Superheater.



G. H. EMERSON Sz H. YOERG.

SUPERHEATER.

APPLIOATION FILED JAN. zo, 1909.

Patented Aug. 4, 1914,

2 SHEETS-SHEBT L 'il @@Q) G. H. EMERSON L H. YOERG.

SUPBRHEATER.

APPLICATION vFILED humo, 1909.

1,1 05,633, Patented Aug. 4, 1914.

2 SIIBETS-SHEET Z.

/i/M. q1/lll l n y ma. s i/ titl . the hotly olt lln superheater.

GEORGE H. EMERSN ANI) HENRY YOERG, OF ST. PAUL, MINNESOTA, ASSIGNORS TO LOCOMOTIVE SUPERHEATER COMPANY, A CORPORATION 0F DELAWARE.

SUPERB HATIER.

Specification of Letters atent.

il. alemana.

' .Potential fitug'. l, MM/l.

Application filed .B'anuary 2t), 1909. Serial No. 473,235.

To UZZ 'whom t1; 'may conm/'12.'

llo it known that we, @notion ll. lilmnnson and l'lnxnr Yonne, olf tilt. laul, Ramsey county, ll/linnesota, have invented eer-tain new and useful Improvranents .in Superheatere7 ot which the following` is a speelti- Catiou. t

'Our invention relates to superheaters designed particularly 'tor use on loeonlotives` and located in the "Smoke hox and hoiler tlues and arranged to receive the saturated Steam 'from the dome and euperheat it he tore delivery to the cylindern.

The ohjeet oll our intention is to provide a snperheater having routparatively [ew jointe` and eounettions and easily :ureessihle for the purpose ot removal or rei'iairs.

A further ohjeet i5; to provide improved moana vtor eonneeting the hoiler l'lue Super heater tuhea` with the main portion olE the Superhtuiter.

Other ohjeets ot" the invention will appear :t'roin the tollowiinr detailed. deatfription.

The invention ronaials generally in vari ons construetionsl and eomhlnations all hereinafter deaiirihed and particularly pointed out in `the claims.

ln the aretanpmrviun drawings` forming part olf this speeitieatitui, Figure 1. isr a transverse, Sectional View ot' a loeinnotive Sinolt'o liofi, loi'lltingr toward the tluo aheet oll the boiler, :showing our improved Superheater in plae'e tlujirein. llip. 3 is a Sectional yView onl a, line snlhstautiallt1 al right anglea to theI eeetion line of Fig. l. Vities. il and `l are detail, seetioual views, showing the construetion of the superlleatir Vigie. ."3 and t3 are detail viowa, allowing dillereut. ways of Seeuring the vtlne roi-ls: in the wall ot the Superhealer, Fig. 7 shown a niodiliealion of the, arrangenient olf the super-healer tnhea in the holler llues.

ln the drawing, i2 repreaeuto a loeon'lolire hoiler having' a llue Anheet 2l and sinolie hoX fl. lhe holler is ol ordinary eonetruelion provided with the ufnial tlues tl represents a seriesA otE lues olI greater diameter than the ordinary1 lioiler linea` to adapt them to reteire the Aauperheater tulle# or roils. and Hnilaldy arranged in the tlue Ialleel lo at'eonnnodate lhe yHiper-heater tuheS. aud Similar to the thief-z generallyr employed in eonnerton with a holler :annu-Mater.

T representa the header or twisting; l'oriningf lhere are preferably two of these headers, one on each side'ol the longituiflinal axis of the boiler and eouneered at their upper ends through a Tr,-oupling; S with a steam supply pipe 9.

Through thin Stefani pipe the saturated steam We are ahle, therelore, to locate the upper ends of the headers in close proximity to the top ot the tlue sheet, and from this point the l aidera extend downwardly to the hot tout otE the holler where they are connected direotly lo the eylinder Steam chests, This; :n'rane'en'ient oi' the headers tnttendini,r di reetlyY 'trom the 'trending to the, steam ehesta without the use ov intermediate jointe or parts, we regart'l as a very important feature in an apparatua` of this kind, as it not only simplifiezl the eonstruetion and in stallation o1" the starei-heater, but eliminates almost entirelyr the annoyance and expense ineidental to snperlnatern as generally made where the rare ot leaky joints soon becomes a eoiwidrrahle Vtaeter in the coat of operating the holler. l `nrthermore, in ease of removal, ill is only neeessary to disetumeet; the joint at the top and hottom ol the headers andthe entire auperheater mayY he entirely removed lrom ila poaition in t'ront ot the llue sheet.

'l'lle lsuperheater headers; or seetiona are oli the santey eoioatrut'tion I1nd a deseril'ltion of one will he sullieienl. the other header being reprt:.-1entml h v the same relereuee numerals with the addition ot the exponent (1,. tiuilahle eonneeliona lll unite the lower ends ol the lniadera` with lhe Steam ehests of the loeoinotive.

`Within' the header Casting longitudinal lateaul t-hanihers 1l and Yl2 are provided, separated hy a longitudinal partition 11. yThe ehamlier ll, ealled the saturated Steam ehamher, eninmnnieates at; its; upper end with the yateam supply pipi.` t) and reeeives steam therefrom and eondueta` it to the. lower end ol the header. The lower end of the ehamher tl ia t-loaed, however, to the wi-ape ol steam. 'l`he ehauiherlt? ia closed at its upper end and eonlniunieatm at its lower end with the tvlinder lteam eheat, as indieatod elearli' in itin'. Il. The header i5 |nel'eruhl5V pro-piled with e\'leru:\l weht; lil and ll pegi'lai-lffH li ntroni on mail. -ide llt) dessine side of the header iseeesssry in removing; the es to deteehits ends from y done and any Y `ees -dreifA/ii out of the :dues the boiler Without dis-z in any mtu the' header. ien results in e, :further end we ere able to ref perheeter tubes Withoi ne other tubes. Genpossible without displacing l r? it is remove the fr tubes or those in front to make the ,s in the reer accessible and if siem1 mbenly bsfleakihen several tubes which are perfectly tight must be detached before the len/ try one een reeeheb and thenwhen the ure replaced in the 'Sues all of them so disturbed may leale' "W ith our construction,

the heedetz r in te lees this kind Where removel I the additional labor et removing the tubesY already t J 1t to obtain access to others, and the danger of melting e, tight tube leaky by l' icing it, will v be entirely avoided.

be is :ieoessi`- le end removable indef Y", ell the others and if one tube, o several of tive ones een A"irb' be reached at once Without dis- "ueetioiis ofthe header or the iioh need no attention. i riddle portion et the tube 17 is preixbeim` tob Loops Ywhich are inserted larger fines l i the drewi es, We prefer to provide oops in :h nue, formed by carrying l the tube into the flue end out :forming bend in the tube? and into the flue again and beck r mnd attaching it to the edjapoel'zet ou the seme eide of the casting'. setureted troni the pipe 9 will theehnmber 11 aud passing'. therefrom Jnreuffh the ports 18 to receiving ends of .me tubes, -will be conducted thereby into and b the loops in the boiler fines. These a, es nene n ,s hind,- will seed te' the `bot .e bust l the there, become leelm, the deferl the boiler and,

eoinieotrios et the lower eiid or the super` ner'- teem ehember to the steam ehest. The owmosite Webs ere similarly equlpped ribes arranged therein H1 substan tielljf wie seine meneer7 there beingpreferebly ir io term of superhester shown herein.

of tubes; one set or group J l eds the tubes or eoeh group are on the seine side of the header to nesting the ends of the tubes to the Wells of the pockets, but We prefer to roll the tube ends therein and provide plugs 2O vin lthe welle otsthe Webs opposite the tubes Where they een be conveniently reached from the trent of the smoke bei:u To remove the tube it is only necessary out it oft Where it enters the trieb, remove tbe plugs-opposite the ends @it the tube end eut out the short pieces iirthe web with inserted, e flue expander may be thrust into the web through the plug holes and the ends or the tube e 'banded or rolled until e tight joint is :formi-xc (See 111g. li.) This can ell be accomplished by inserting the looped end et the tube into its ilue and then springing the tubo slightly until its end-s slip into the sockets in the Weller the web. Generally in superheziters it is necessary to remove the lentire cast-ing, es the tubes areleeeh connected to opposite sides thereof, and the removal of e tube from its flue is impossible Without rst deteching' the header itself.

llle do not regard the external pocket as en indispensable adjunct to the superheziter betaler.l but only as convenient ineens for conneeting the ends of the tube Withboth eliuiulve-v on the seine side of the header.

1n f D We have `shown :L modihed means for securingl the tubes in the' Wall of the suporheeter, which consists in providing lool; nuts 2.1011 the ends ot' the tubes Within their sockets in the Webs of the superhesting cestino and arranging bushings Q2 its? vetween thesel nuts and the plugs 2G. Premature movement ot -the lock nuts will thus be revented. The bushings 22 have holes 23, iii their Wells, leading to the chambers 11 We here shown another means Q' the tubes iii the well 'ot' the which eensists iii interiorly the soelret of the web end providit -he superheeter headers, and' in;- a nut 23', extoriorly threatletl, to fit the wall ot' tho sorltet antl eontattim" with the. mit; il on the end ot' the tuhe. lhe re movable plug opposttethe nut 251i permits rangement ot' the tuhes in the hoiler llues, wlfith consists, as shown, in providing a loop il extending within one flue antl. then ai-rieti iut-o the next flue insteatl ot haring all the loops in one lluo as illustrated in Fig. Jl.

(lenta-ally, in superheaters of this type, a largo number of joints antl connections are provided, whirh are of expensive construction anti soon het-ome, leaky through the twistingA anti 'at-king; of the lotomtitive. In the apparatus, which we have provitletl, the, luunher vot" `ioints employed is retluoetl to a minimum, tht ronneetions are simple aml easily aoeessihle antl :an he, oasily reat'hetl tor examination anti repairs,

We elaim as our invent ion:

l. ln a boiler` the combination, with a flue sheet am] tlues anti a Steam supply pipe, of a relativtly narrow superhtmter luatlerlyiii;t entirely to one sitle of saitl tlues anfl entmutingg 'trom near the top olE the lue sheet to the bottom thereof and having, lurthtr` saturatttl antl superheattal steam rhanlirrs arranged one in vt'rontol the other, the lit-tier heine Connertetl with the stam supply pipe at the topautl with the engine rylintlt rs at the bottom, ant'l superhoater elements with in the 'fines antl having` all their entls joinetl to the two heatltr t'hamhers on the sami; side tilierrot' hut enteri1i;r saitl thamhers from the rear1 the entls ol. oaeh element: as they enter the heatler heilig arranged helow ono another in the ortlrr of continuity olj theI flues to which the elements lieloui, \\'herehy separation of any one ol' saitl tuht` eluls to `aaitl heatltautl the removal ot' any one or more ol' saitl tulies is possihltwithout. tlisplaremeht ol sai/l heatler, or ot' thtl other tuhefs.

3. 'lhe t'omhinatitm, with a lioiler, lha` Sheetaml rows ot" lines aml a pipe for the saturatetl .steam supply, ot rolatively nar row rsuperluater heatlers ar angetl one on eat'h sitle o'll the hoiler between rows ol' (lues autl extending' from tht` top to tht liottom thereof in l'ront ot the 'lue sheet` the upper eu'ls ol` saitl heatlers haringI a `l`t-ouplim1 ronturtion with saitl steam supply pipe near the top olE saitl llue .sl'uet antl the lower entls ot .saitl heailers having` eounrrtions with tht` O vlintltrs autl sttam rhrsts near the hotlom ol' saitl lue sheet. earh hatlri' having' lur ther .saturated aml .supi-.rlualetl steam rhuml here;` one. in l'ront ot' the otherN unil superheatiiw ehments within the tlues the 'element entls ot' tho two rows 0i. llues on opposite sitles ot' a Agiven heailer heilig joinetl to the two tlnunhers thereof on the same sirlo olE tho heatlet' as artI the thu-s routaiuing them hut enteringl saitl tfhzunlirrs trom the rear, wherehy seimration o't' any one ol,` saitl tuhe enrls tosaitl heailer, antl the removal oli any one or more et' saitl lulies is possible without tlisplartfnitent olI saitl heatler, or ol' tho other tuhea;

Ii. 'lhe eomhinatiim, with a loroiiiotive` smoke box atul lluo shoot. :unl lluos therel'or, antl a pipe l'or the satt ratetl steam supply, oli a. superlnaiter lu-:ulor arraugetl withiu Saitil box, a coupling' t'onninoting,f aaitl h auler with saitl am supply pipe, said hoatler consisting o'l" a single casting,r hai" ing a loiugiti-ulinal. partition tliviiling it into a eoiupartment Alfor satui'atotl steam anti a oompartment l'or superluattetl steam, saitl Saturalerl steam oompartmvut romnumieating' through saitl coupling with Sait'l steam supply pipe, :uul saitl supe heated steam rompartmeut havingr a connertion `with tho` :steam chest, :unl superheating' tuhes arrangftl in groups on rat-.h siilo ot saitl heatler7 the emit; ot the tuhes ol`v earh group etmununiratiug with saitl rhamliors respet'tirely ou tho same sitile of :aaiil h aulor.

ft. rthe romhination, with a hoiler t'luo :sheet autl tlues antl a saturated stiam supj pl),y pipe, ol superhater hatle's` arranged one on t-aeh :sitlo ot' tho longitudinal axis of the lit-iler :mtl near saitl lluo sheot, the upper omls oi Saul heath-rs having a connection with saitl steam supply pipe, antl the. lower entls ol: saitl h aulers having,r connections with the ryliiuler .steam vhosts, eat'h hoatler romprising; an elongraletl ranting' having,r a compartment t'or saturattal steam antl a oompartmtait lor superlualt'tl Steam, tho former t-omminut-ating with saitl steam sup ply pip` anrl tho latter with the connections; hauling; to the steam vhosts, superhiatingr tuhesI arranged. in groups on arh sitio ot .iz-.itl heatlers. the tuhes ot earh group living); loralefl one aliore another :intl earh tuhi; in a `group haringl its entls tronnta'trt'l respttively with saitl steam rhamhera.

5. lu a oiler superlieater, the rtnnl ination et a heatler tli\'itlerl hy a partition into an iutlepeullent rompartment Al'or saturated steam and au intlepetulent compartment'y for superlwaletl steam aiul having a plurality olexterual poolnfts, some ol saitl pot-.lieta on une sitlo ol' lsaitl heatler rtnnmunirat'ingr with `saitl satur: tetl steam rtunpartment. antl the remaining;` pot-ltets on the .same sitle ol'` the lirafler rouununiratintf with saitl stupri heattil steam romliai-talent, antl suptihtalintr tulitnsy routier-teil lirlween saitl saluratttl :ual :superluatril steam potlt'ets.

l1. ln :i superluater tor loroluotii'e lioilti t) Dfi lfif) lll() ers, the combination oi a header divided by a longitudinal pai eition into independent compartments Jor saturated and superlieated steam, and having an external longitudinally arranged web provided With a series of transverse pockets communicating alternately with said saturated and superheated steam compartments, and superheating tubes connecting the said viel,

7. A superheater comprising, in combi nation, a header having steam chambers 'therein and external longitudinal Webs on each side thereof, said Webs having transverse pockets therein, yand passages connecting some of the pockets in each Web with one of said chambers, and 'the remain'- ing pockets in .vebs with the other chamber, and superheating tubes havingtheir ends communicating `with said chambers respectively through vthe pockets in the same web. n

8. fl superheater for steam boilers, comprising a header having a longitudinal partition dividing said header into separate saturated and superheated steam chambers, and. a longitudinally extending boss at the side of said header adjoiniiig,` an end of said partition, said boss being divided into con'ipartments, alternate ones of said compartments communicating with said saturated and superheated steam chambers.

9. A superheatei.' for steam boilers, com prising a header having a substantially centz-al longitudinal partition dividing said header into separate saturated and superheated steam chambers and longitudinally extending bo'sses at the sides of said header adjacent the ends oi said partition, said bosses lie-ingr divided into compartments, alternate ones oi' said compartments communicatingi with said 'saturated and superheated steam chambers.

l0. A sunerheater for steam boilers, comprising a header having a longitudinal partition dividing` f id header into separate saturated and supcrheated chaml'iers, a longitudin ally extending;i boss at the side oi said header .nljoiningr an cud oit said partition, said boss being divided into compartments, and a superheater pipe 'having` its opposite ends conne d with alternate compartments in said boss to Form a communication between said saturated and superheated steam adjacent pockets chambers, said boss being),` provided With a ,stoppered opening' substantially opposite one oi the ends of said snoei-heater pipe,

ll. A boiler containing' two curved rows of enlarged fire dues arranged about a centrai group of small fines, in combination with ka curved header arranged in iront of and substantially between said rows of enlarged dues, having; a'su'bstantially central longitudinal partiti n dividingn said header into separate, saturated, and superherutedv e, arcanes steam compartments, longitudinally extending bosses at the sides of said header adjoining the ends of said partition, said bosses being divided into compartments communicatino; with said saturated and superheated steam chambers and superheating pipes occupying said enlarged re tlues and having their opposite ends connected respectively with said alternate chambers.

l2. rl. boiler containing two curved rovvs of enlarged fire lues arranged about a een* tral group' of small dues in combination with a curved header arranged in front of and between said rows of' enlarged dues, having,` saturated and superlieated steam compartments, the former being connected with said boiler and the latter having an outlet, bosses cn the side of said superheater having chambers alternately' connected With said saturated and superheated steam comH partinents and superheating pipes occupyins; said enlarged lire flues and having their opposite ends connected respectively with said alternate chambers.

13. A superheater for a steam boiler, comprising, a header having a chamber connected with the saturated steam from said longitudinal chambered bosses opening into Said Saturated and superheated steam chamf bers, and a superheating steam pipe having" one end connected to a boss Which cOlilmull-k crates with the saturated steam chamber1 and the other ond connected to the boss which communicates with the superheated steam chamber.

14s. il superheater, comprising, a header, having longitudinally arranged saturated and superheatcd chambers therein and a series of ducts arranged in tivo rows on each side of said header and communicating with said chambers respectively, the ducts com municating1 with 'a chamber on a side of said header being staggered With respect to the ducts communicating With the other chamber on the saine side, and superheater tubes coumiunicatinp,4 with said chambers on each side oli said header tl'irough said ducts.

l5. A superheater header having' saturated and superheated steam chambers 'formed therein and externalbosscs formed on the side Walls of said steam chambers and projecting laterally therefrom and havsockets communicating with said chambers respectively, the bosses communicating with one chamber being staggered with respect to those communicating with the other chamber for the same side of the header, andl superheater tubes communicating with said chambers through said sockets.

lo. 'A superheater comprising a header having longitudinally arranged saturated and superheated steam chambers therein and series of bosses or lugs projecting i sono from the walls of said ehniuhers on euch Sid@ ol' Suid header, said loosses having Soekels therein eoninlunhmting wilh one ol Suid chambers respectively, the bosses communicating with one ehan'iber on one side o3l` said header being` staggered with respect to the bosses emnlnunieul'ing with the olher ehuniher on the sume side, whereby :ill ol' the bosses on the sume side will he exposed und accessible from the front of the header, und superheuler tubes communicating with Suid ehznnhers on euch side of Suid header through uid sockets.

17. A superheuter comprising', in combination, a hendel' huvinp; Saturated :1nd superheated steam hunihers therein :ind lwo rows of external, longitudinally arranged lie@ on euch side lzhel'eol"7 Suid hessel huvlug lruusrrrse pockets therein, pzlssrugrs rouueifl- 'lug' [he poeliels iu one row ol' homs wilh one of .Suid (fhuuilu-rs und the poeheth' in the other row ol' bosses on the sanne side ol' the hezulerlwilh the other rhuinlirr, und superhenling' Luhel huvin;v their ends eouuuuniculingwith Suid' -eluunhers reepeeliirely through the pockets on the suine l ide of the heuder.

Iu witness whereof, we hure hereunto Het our humls this 11th day ol' lunuury 1905). l 1()l{(vll 1 ll. lMlChSON. lllCNllY Y()l".l\(}. lV i thermes A. (l, Salrrn, ll. hlimsxunn. 

